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The 1000-day course

Day 367: Discovered attack

Target rating: 1073

Lesson of the day

A discovered attack works like a curtain: one piece steps off the line and unveils the long-range piece behind it. The beauty is that the moving piece can create a second threat of its own — two attacks in one move. Look for your stacked pairs: a bishop or rook behind a knight or pawn, aimed through them at something valuable. Send the front piece to the most aggressive square — a discovery without a second threat wastes half its power.

Warm-up

1. Winning blow: knight to c1 (d3)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
2. Winning blow: king to b2 (b1·6)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
3. Attack on the uncastled king: pawn to g3 (g2·2)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
4. Winning blow: pawn to d3 (d2·2)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
5. Winning blow: knight to c6 (d8·2)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
6. Winning blow: rook to b1 (c1·4)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
7. Winning blow: rook to g1 (c1)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
8. Winning blow: rook to a3 (a1)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
9. Attack on the uncastled king: pawn to e3 (e2)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
10. Winning blow: bishop to h2 (f4)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation

Core set

11. Winning blow: knight to d6 (b5·7)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
12. Winning blow: knight to e5 (f3·10)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
13. Attack on the uncastled king: bishop to d7 (b5·6)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
14. Winning blow: knight to e6 (d4·8)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
15. Attack on the uncastled king: rook to d8 (d4·3)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
16. Skewer: rook to h3 (a3)Analysis
h1g2f3e4d5c6b7a8
Black to move — find the best continuation
17. Winning blow: queen to a5 (a2)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
18. Winning blow: queen to f5 (d3·4)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
19. Winning blow: queen to b7 (f3·4)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
20. Winning blow: queen to g2 (g5)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
21. Winning blow: queen to e6 (e3·5)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
22. Attack on the uncastled king: queen to f7 (f2·4)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
23. Winning blow: queen to d3 (c3·2)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
24. Winning blow: rook to d8 (d6·4)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
25. Attack on the uncastled king: queen to b8 (b2·4)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation

Challenge

26. Winning blow: queen to e7 (e6·6)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
27. Winning blow: rook to e1 (a1·6)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
28. Winning blow: rook to g1 (b1)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation

Review

29. Winning blow: pawn to g3 (h2·5)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
30. Attack on the uncastled king: rook to g7 (g3)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation

Day complete — every puzzle solved. See you tomorrow!

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